LCOV - code coverage report
Current view: top level - basegfx/source/polygon - b2dsvgpolypolygon.cxx (source / functions) Hit Total Coverage
Test: commit e02a6cb2c3e2b23b203b422e4e0680877f232636 Lines: 0 375 0.0 %
Date: 2014-04-14 Functions: 0 5 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #include <basegfx/polygon/b2dpolygontools.hxx>
      21             : #include <basegfx/polygon/b2dpolypolygontools.hxx>
      22             : #include <basegfx/polygon/b2dpolypolygon.hxx>
      23             : #include <basegfx/matrix/b2dhommatrix.hxx>
      24             : #include <basegfx/matrix/b2dhommatrixtools.hxx>
      25             : #include <rtl/ustring.hxx>
      26             : #include <rtl/math.hxx>
      27             : #include <stringconversiontools.hxx>
      28             : 
      29             : namespace basegfx
      30             : {
      31             :     namespace tools
      32             :     {
      33           0 :         bool PointIndex::operator<(const PointIndex& rComp) const
      34             :         {
      35           0 :             if(rComp.getPolygonIndex() == getPolygonIndex())
      36             :             {
      37           0 :                 return rComp.getPointIndex() < getPointIndex();
      38             :             }
      39             : 
      40           0 :             return rComp.getPolygonIndex() < getPolygonIndex();
      41             :         }
      42             : 
      43           0 :         bool importFromSvgD(
      44             :             B2DPolyPolygon& o_rPolyPolygon,
      45             :             const OUString& rSvgDStatement,
      46             :             bool bHandleRelativeNextPointCompatible,
      47             :             PointIndexSet* pHelpPointIndexSet)
      48             :         {
      49           0 :             o_rPolyPolygon.clear();
      50           0 :             const sal_Int32 nLen(rSvgDStatement.getLength());
      51           0 :             sal_Int32 nPos(0);
      52           0 :             double nLastX( 0.0 );
      53           0 :             double nLastY( 0.0 );
      54           0 :             B2DPolygon aCurrPoly;
      55             : 
      56             :             // skip initial whitespace
      57           0 :             ::basegfx::internal::lcl_skipSpaces(nPos, rSvgDStatement, nLen);
      58             : 
      59           0 :             while(nPos < nLen)
      60             :             {
      61           0 :                 bool bRelative(false);
      62           0 :                 const sal_Unicode aCurrChar(rSvgDStatement[nPos]);
      63             : 
      64           0 :                 if(o_rPolyPolygon.count() && !aCurrPoly.count() && !('m' == aCurrChar || 'M' == aCurrChar))
      65             :                 {
      66             :                     // we have a new sub-polygon starting, but without a 'moveto' command.
      67             :                     // this requires to add the current point as start point to the polygon
      68             :                     // (see SVG1.1 8.3.3 The "closepath" command)
      69           0 :                     aCurrPoly.append(B2DPoint(nLastX, nLastY));
      70             :                 }
      71             : 
      72           0 :                 switch(aCurrChar)
      73             :                 {
      74             :                     case 'z' :
      75             :                     case 'Z' :
      76             :                     {
      77             :                         // consume CurrChar and whitespace
      78           0 :                         nPos++;
      79           0 :                         ::basegfx::internal::lcl_skipSpaces(nPos, rSvgDStatement, nLen);
      80             : 
      81             :                         // create closed polygon and reset import values
      82           0 :                         if(aCurrPoly.count())
      83             :                         {
      84           0 :                             if(!bHandleRelativeNextPointCompatible)
      85             :                             {
      86             :                                 // SVG defines that "the next subpath starts at the
      87             :                                 // same initial point as the current subpath", so set the
      88             :                                 // current point if we do not need to be compatible
      89           0 :                                 nLastX = aCurrPoly.getB2DPoint(0).getX();
      90           0 :                                 nLastY = aCurrPoly.getB2DPoint(0).getY();
      91             :                             }
      92             : 
      93           0 :                             aCurrPoly.setClosed(true);
      94           0 :                             o_rPolyPolygon.append(aCurrPoly);
      95           0 :                             aCurrPoly.clear();
      96             :                         }
      97             : 
      98           0 :                         break;
      99             :                     }
     100             : 
     101             :                     case 'm' :
     102             :                     case 'M' :
     103             :                     {
     104             :                         // create non-closed polygon and reset import values
     105           0 :                         if(aCurrPoly.count())
     106             :                         {
     107           0 :                             o_rPolyPolygon.append(aCurrPoly);
     108           0 :                             aCurrPoly.clear();
     109             :                         }
     110             : 
     111             :                         // FALLTHROUGH intended to add coordinate data as 1st point of new polygon
     112             :                     }
     113             :                     case 'l' :
     114             :                     case 'L' :
     115             :                     {
     116           0 :                         if('m' == aCurrChar || 'l' == aCurrChar)
     117             :                         {
     118           0 :                             bRelative = true;
     119             :                         }
     120             : 
     121             :                         // consume CurrChar and whitespace
     122           0 :                         nPos++;
     123           0 :                         ::basegfx::internal::lcl_skipSpaces(nPos, rSvgDStatement, nLen);
     124             : 
     125           0 :                         while(nPos < nLen && ::basegfx::internal::lcl_isOnNumberChar(rSvgDStatement, nPos))
     126             :                         {
     127             :                             double nX, nY;
     128             : 
     129           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nX, nPos, rSvgDStatement, nLen)) return false;
     130           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nY, nPos, rSvgDStatement, nLen)) return false;
     131             : 
     132           0 :                             if(bRelative)
     133             :                             {
     134           0 :                                 nX += nLastX;
     135           0 :                                 nY += nLastY;
     136             :                             }
     137             : 
     138             :                             // set last position
     139           0 :                             nLastX = nX;
     140           0 :                             nLastY = nY;
     141             : 
     142             :                             // add point
     143           0 :                             aCurrPoly.append(B2DPoint(nX, nY));
     144             :                         }
     145           0 :                         break;
     146             :                     }
     147             : 
     148             :                     case 'h' :
     149             :                     {
     150           0 :                         bRelative = true;
     151             :                         // FALLTHROUGH intended
     152             :                     }
     153             :                     case 'H' :
     154             :                     {
     155           0 :                         nPos++;
     156           0 :                         ::basegfx::internal::lcl_skipSpaces(nPos, rSvgDStatement, nLen);
     157             : 
     158           0 :                         while(nPos < nLen && ::basegfx::internal::lcl_isOnNumberChar(rSvgDStatement, nPos))
     159             :                         {
     160           0 :                             double nX, nY(nLastY);
     161             : 
     162           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nX, nPos, rSvgDStatement, nLen)) return false;
     163             : 
     164           0 :                             if(bRelative)
     165             :                             {
     166           0 :                                 nX += nLastX;
     167             :                             }
     168             : 
     169             :                             // set last position
     170           0 :                             nLastX = nX;
     171             : 
     172             :                             // add point
     173           0 :                             aCurrPoly.append(B2DPoint(nX, nY));
     174             :                         }
     175           0 :                         break;
     176             :                     }
     177             : 
     178             :                     case 'v' :
     179             :                     {
     180           0 :                         bRelative = true;
     181             :                         // FALLTHROUGH intended
     182             :                     }
     183             :                     case 'V' :
     184             :                     {
     185           0 :                         nPos++;
     186           0 :                         ::basegfx::internal::lcl_skipSpaces(nPos, rSvgDStatement, nLen);
     187             : 
     188           0 :                         while(nPos < nLen && ::basegfx::internal::lcl_isOnNumberChar(rSvgDStatement, nPos))
     189             :                         {
     190           0 :                             double nX(nLastX), nY;
     191             : 
     192           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nY, nPos, rSvgDStatement, nLen)) return false;
     193             : 
     194           0 :                             if(bRelative)
     195             :                             {
     196           0 :                                 nY += nLastY;
     197             :                             }
     198             : 
     199             :                             // set last position
     200           0 :                             nLastY = nY;
     201             : 
     202             :                             // add point
     203           0 :                             aCurrPoly.append(B2DPoint(nX, nY));
     204             :                         }
     205           0 :                         break;
     206             :                     }
     207             : 
     208             :                     case 's' :
     209             :                     {
     210           0 :                         bRelative = true;
     211             :                         // FALLTHROUGH intended
     212             :                     }
     213             :                     case 'S' :
     214             :                     {
     215           0 :                         nPos++;
     216           0 :                         ::basegfx::internal::lcl_skipSpaces(nPos, rSvgDStatement, nLen);
     217             : 
     218           0 :                         while(nPos < nLen && ::basegfx::internal::lcl_isOnNumberChar(rSvgDStatement, nPos))
     219             :                         {
     220             :                             double nX, nY;
     221             :                             double nX2, nY2;
     222             : 
     223           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nX2, nPos, rSvgDStatement, nLen)) return false;
     224           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nY2, nPos, rSvgDStatement, nLen)) return false;
     225           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nX, nPos, rSvgDStatement, nLen)) return false;
     226           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nY, nPos, rSvgDStatement, nLen)) return false;
     227             : 
     228           0 :                             if(bRelative)
     229             :                             {
     230           0 :                                 nX2 += nLastX;
     231           0 :                                 nY2 += nLastY;
     232           0 :                                 nX += nLastX;
     233           0 :                                 nY += nLastY;
     234             :                             }
     235             : 
     236             :                             // ensure existance of start point
     237           0 :                             if(!aCurrPoly.count())
     238             :                             {
     239           0 :                                 aCurrPoly.append(B2DPoint(nLastX, nLastY));
     240             :                             }
     241             : 
     242             :                             // get first control point. It's the reflection of the PrevControlPoint
     243             :                             // of the last point. If not existent, use current point (see SVG)
     244           0 :                             B2DPoint aPrevControl(B2DPoint(nLastX, nLastY));
     245           0 :                             const sal_uInt32 nIndex(aCurrPoly.count() - 1);
     246             : 
     247           0 :                             if(aCurrPoly.areControlPointsUsed() && aCurrPoly.isPrevControlPointUsed(nIndex))
     248             :                             {
     249           0 :                                 const B2DPoint aPrevPoint(aCurrPoly.getB2DPoint(nIndex));
     250           0 :                                 const B2DPoint aPrevControlPoint(aCurrPoly.getPrevControlPoint(nIndex));
     251             : 
     252             :                                 // use mirrored previous control point
     253           0 :                                 aPrevControl.setX((2.0 * aPrevPoint.getX()) - aPrevControlPoint.getX());
     254           0 :                                 aPrevControl.setY((2.0 * aPrevPoint.getY()) - aPrevControlPoint.getY());
     255             :                             }
     256             : 
     257             :                             // append curved edge
     258           0 :                             aCurrPoly.appendBezierSegment(aPrevControl, B2DPoint(nX2, nY2), B2DPoint(nX, nY));
     259             : 
     260             :                             // set last position
     261           0 :                             nLastX = nX;
     262           0 :                             nLastY = nY;
     263           0 :                         }
     264           0 :                         break;
     265             :                     }
     266             : 
     267             :                     case 'c' :
     268             :                     {
     269           0 :                         bRelative = true;
     270             :                         // FALLTHROUGH intended
     271             :                     }
     272             :                     case 'C' :
     273             :                     {
     274           0 :                         nPos++;
     275           0 :                         ::basegfx::internal::lcl_skipSpaces(nPos, rSvgDStatement, nLen);
     276             : 
     277           0 :                         while(nPos < nLen && ::basegfx::internal::lcl_isOnNumberChar(rSvgDStatement, nPos))
     278             :                         {
     279             :                             double nX, nY;
     280             :                             double nX1, nY1;
     281             :                             double nX2, nY2;
     282             : 
     283           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nX1, nPos, rSvgDStatement, nLen)) return false;
     284           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nY1, nPos, rSvgDStatement, nLen)) return false;
     285           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nX2, nPos, rSvgDStatement, nLen)) return false;
     286           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nY2, nPos, rSvgDStatement, nLen)) return false;
     287           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nX, nPos, rSvgDStatement, nLen)) return false;
     288           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nY, nPos, rSvgDStatement, nLen)) return false;
     289             : 
     290           0 :                             if(bRelative)
     291             :                             {
     292           0 :                                 nX1 += nLastX;
     293           0 :                                 nY1 += nLastY;
     294           0 :                                 nX2 += nLastX;
     295           0 :                                 nY2 += nLastY;
     296           0 :                                 nX += nLastX;
     297           0 :                                 nY += nLastY;
     298             :                             }
     299             : 
     300             :                             // ensure existance of start point
     301           0 :                             if(!aCurrPoly.count())
     302             :                             {
     303           0 :                                 aCurrPoly.append(B2DPoint(nLastX, nLastY));
     304             :                             }
     305             : 
     306             :                             // append curved edge
     307           0 :                             aCurrPoly.appendBezierSegment(B2DPoint(nX1, nY1), B2DPoint(nX2, nY2), B2DPoint(nX, nY));
     308             : 
     309             :                             // set last position
     310           0 :                             nLastX = nX;
     311           0 :                             nLastY = nY;
     312             :                         }
     313           0 :                         break;
     314             :                     }
     315             : 
     316             :                     // #100617# quadratic beziers are imported as cubic ones
     317             :                     case 'q' :
     318             :                     {
     319           0 :                         bRelative = true;
     320             :                         // FALLTHROUGH intended
     321             :                     }
     322             :                     case 'Q' :
     323             :                     {
     324           0 :                         nPos++;
     325           0 :                         ::basegfx::internal::lcl_skipSpaces(nPos, rSvgDStatement, nLen);
     326             : 
     327           0 :                         while(nPos < nLen && ::basegfx::internal::lcl_isOnNumberChar(rSvgDStatement, nPos))
     328             :                         {
     329             :                             double nX, nY;
     330             :                             double nX1, nY1;
     331             : 
     332           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nX1, nPos, rSvgDStatement, nLen)) return false;
     333           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nY1, nPos, rSvgDStatement, nLen)) return false;
     334           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nX, nPos, rSvgDStatement, nLen)) return false;
     335           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nY, nPos, rSvgDStatement, nLen)) return false;
     336             : 
     337           0 :                             if(bRelative)
     338             :                             {
     339           0 :                                 nX1 += nLastX;
     340           0 :                                 nY1 += nLastY;
     341           0 :                                 nX += nLastX;
     342           0 :                                 nY += nLastY;
     343             :                             }
     344             : 
     345             :                             // calculate the cubic bezier coefficients from the quadratic ones
     346           0 :                             const double nX1Prime((nX1 * 2.0 + nLastX) / 3.0);
     347           0 :                             const double nY1Prime((nY1 * 2.0 + nLastY) / 3.0);
     348           0 :                             const double nX2Prime((nX1 * 2.0 + nX) / 3.0);
     349           0 :                             const double nY2Prime((nY1 * 2.0 + nY) / 3.0);
     350             : 
     351             :                             // ensure existance of start point
     352           0 :                             if(!aCurrPoly.count())
     353             :                             {
     354           0 :                                 aCurrPoly.append(B2DPoint(nLastX, nLastY));
     355             :                             }
     356             : 
     357             :                             // append curved edge
     358           0 :                             aCurrPoly.appendBezierSegment(B2DPoint(nX1Prime, nY1Prime), B2DPoint(nX2Prime, nY2Prime), B2DPoint(nX, nY));
     359             : 
     360             :                             // set last position
     361           0 :                             nLastX = nX;
     362           0 :                             nLastY = nY;
     363             :                         }
     364           0 :                         break;
     365             :                     }
     366             : 
     367             :                     // #100617# relative quadratic beziers are imported as cubic
     368             :                     case 't' :
     369             :                     {
     370           0 :                         bRelative = true;
     371             :                         // FALLTHROUGH intended
     372             :                     }
     373             :                     case 'T' :
     374             :                     {
     375           0 :                         nPos++;
     376           0 :                         ::basegfx::internal::lcl_skipSpaces(nPos, rSvgDStatement, nLen);
     377             : 
     378           0 :                         while(nPos < nLen && ::basegfx::internal::lcl_isOnNumberChar(rSvgDStatement, nPos))
     379             :                         {
     380             :                             double nX, nY;
     381             : 
     382           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nX, nPos, rSvgDStatement, nLen)) return false;
     383           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nY, nPos, rSvgDStatement, nLen)) return false;
     384             : 
     385           0 :                             if(bRelative)
     386             :                             {
     387           0 :                                 nX += nLastX;
     388           0 :                                 nY += nLastY;
     389             :                             }
     390             : 
     391             :                             // ensure existance of start point
     392           0 :                             if(!aCurrPoly.count())
     393             :                             {
     394           0 :                                 aCurrPoly.append(B2DPoint(nLastX, nLastY));
     395             :                             }
     396             : 
     397             :                             // get first control point. It's the reflection of the PrevControlPoint
     398             :                             // of the last point. If not existent, use current point (see SVG)
     399           0 :                             B2DPoint aPrevControl(B2DPoint(nLastX, nLastY));
     400           0 :                             const sal_uInt32 nIndex(aCurrPoly.count() - 1);
     401           0 :                             const B2DPoint aPrevPoint(aCurrPoly.getB2DPoint(nIndex));
     402             : 
     403           0 :                             if(aCurrPoly.areControlPointsUsed() && aCurrPoly.isPrevControlPointUsed(nIndex))
     404             :                             {
     405           0 :                                 const B2DPoint aPrevControlPoint(aCurrPoly.getPrevControlPoint(nIndex));
     406             : 
     407             :                                 // use mirrored previous control point
     408           0 :                                 aPrevControl.setX((2.0 * aPrevPoint.getX()) - aPrevControlPoint.getX());
     409           0 :                                 aPrevControl.setY((2.0 * aPrevPoint.getY()) - aPrevControlPoint.getY());
     410             :                             }
     411             : 
     412           0 :                             if(!aPrevControl.equal(aPrevPoint))
     413             :                             {
     414             :                                 // there is a prev control point, and we have the already mirrored one
     415             :                                 // in aPrevControl. We also need the quadratic control point for this
     416             :                                 // new quadratic segment to calculate the 2nd cubic control point
     417             :                                 const B2DPoint aQuadControlPoint(
     418           0 :                                     ((3.0 * aPrevControl.getX()) - aPrevPoint.getX()) / 2.0,
     419           0 :                                     ((3.0 * aPrevControl.getY()) - aPrevPoint.getY()) / 2.0);
     420             : 
     421             :                                 // calculate the cubic bezier coefficients from the quadratic ones.
     422           0 :                                 const double nX2Prime((aQuadControlPoint.getX() * 2.0 + nX) / 3.0);
     423           0 :                                 const double nY2Prime((aQuadControlPoint.getY() * 2.0 + nY) / 3.0);
     424             : 
     425             :                                 // append curved edge, use mirrored cubic control point directly
     426           0 :                                 aCurrPoly.appendBezierSegment(aPrevControl, B2DPoint(nX2Prime, nY2Prime), B2DPoint(nX, nY));
     427             :                             }
     428             :                             else
     429             :                             {
     430             :                                 // when no previous control, SVG says to use current point -> straight line.
     431             :                                 // Just add end point
     432           0 :                                 aCurrPoly.append(B2DPoint(nX, nY));
     433             :                             }
     434             : 
     435             :                             // set last position
     436           0 :                             nLastX = nX;
     437           0 :                             nLastY = nY;
     438           0 :                         }
     439           0 :                         break;
     440             :                     }
     441             : 
     442             :                     case 'a' :
     443             :                     {
     444           0 :                         bRelative = true;
     445             :                         // FALLTHROUGH intended
     446             :                     }
     447             :                     case 'A' :
     448             :                     {
     449           0 :                         nPos++;
     450           0 :                         ::basegfx::internal::lcl_skipSpaces(nPos, rSvgDStatement, nLen);
     451             : 
     452           0 :                         while(nPos < nLen && ::basegfx::internal::lcl_isOnNumberChar(rSvgDStatement, nPos))
     453             :                         {
     454             :                             double nX, nY;
     455             :                             double fRX, fRY, fPhi;
     456             :                             sal_Int32 bLargeArcFlag, bSweepFlag;
     457             : 
     458           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(fRX, nPos, rSvgDStatement, nLen)) return false;
     459           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(fRY, nPos, rSvgDStatement, nLen)) return false;
     460           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(fPhi, nPos, rSvgDStatement, nLen)) return false;
     461           0 :                             if(!::basegfx::internal::lcl_importFlagAndSpaces(bLargeArcFlag, nPos, rSvgDStatement, nLen)) return false;
     462           0 :                             if(!::basegfx::internal::lcl_importFlagAndSpaces(bSweepFlag, nPos, rSvgDStatement, nLen)) return false;
     463           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nX, nPos, rSvgDStatement, nLen)) return false;
     464           0 :                             if(!::basegfx::internal::lcl_importDoubleAndSpaces(nY, nPos, rSvgDStatement, nLen)) return false;
     465             : 
     466           0 :                             if(bRelative)
     467             :                             {
     468           0 :                                 nX += nLastX;
     469           0 :                                 nY += nLastY;
     470             :                             }
     471             : 
     472           0 :                             if( nX == nLastX && nY == nLastY )
     473           0 :                                 continue; // start==end -> skip according to SVG spec
     474             : 
     475           0 :                             if( fRX == 0.0 || fRY == 0.0 )
     476             :                             {
     477             :                                 // straight line segment according to SVG spec
     478           0 :                                 aCurrPoly.append(B2DPoint(nX, nY));
     479             :                             }
     480             :                             else
     481             :                             {
     482             :                                 // normalize according to SVG spec
     483           0 :                                 fRX=fabs(fRX); fRY=fabs(fRY);
     484             : 
     485             :                                 // from the SVG spec, appendix F.6.4
     486             : 
     487             :                                 // |x1'|   |cos phi   sin phi|  |(x1 - x2)/2|
     488             :                                 // |y1'| = |-sin phi  cos phi|  |(y1 - y2)/2|
     489           0 :                                 const B2DPoint p1(nLastX, nLastY);
     490           0 :                                 const B2DPoint p2(nX, nY);
     491           0 :                                 B2DHomMatrix aTransform(basegfx::tools::createRotateB2DHomMatrix(-fPhi*M_PI/180));
     492             : 
     493           0 :                                 const B2DPoint p1_prime( aTransform * B2DPoint(((p1-p2)/2.0)) );
     494             : 
     495             :                                 //           ______________________________________       rx y1'
     496             :                                 // |cx'|  + /  rx^2 ry^2 - rx^2 y1'^2 - ry^2 x1^2           ry
     497             :                                 // |cy'| =-/       rx^2y1'^2 + ry^2 x1'^2               - ry x1'
     498             :                                 //                                                          rx
     499             :                                 // chose + if f_A != f_S
     500             :                                 // chose - if f_A  = f_S
     501           0 :                                 B2DPoint aCenter_prime;
     502             :                                 const double fRadicant(
     503           0 :                                     (fRX*fRX*fRY*fRY - fRX*fRX*p1_prime.getY()*p1_prime.getY() - fRY*fRY*p1_prime.getX()*p1_prime.getX())/
     504           0 :                                     (fRX*fRX*p1_prime.getY()*p1_prime.getY() + fRY*fRY*p1_prime.getX()*p1_prime.getX()));
     505           0 :                                 if( fRadicant < 0.0 )
     506             :                                 {
     507             :                                     // no solution - according to SVG
     508             :                                     // spec, scale up ellipse
     509             :                                     // uniformly such that it passes
     510             :                                     // through end points (denominator
     511             :                                     // of radicant solved for fRY,
     512             :                                     // with s=fRX/fRY)
     513           0 :                                     const double fRatio(fRX/fRY);
     514             :                                     const double fRadicant2(
     515           0 :                                         p1_prime.getY()*p1_prime.getY() +
     516           0 :                                         p1_prime.getX()*p1_prime.getX()/(fRatio*fRatio));
     517           0 :                                     if( fRadicant2 < 0.0 )
     518             :                                     {
     519             :                                         // only trivial solution, one
     520             :                                         // of the axes 0 -> straight
     521             :                                         // line segment according to
     522             :                                         // SVG spec
     523           0 :                                         aCurrPoly.append(B2DPoint(nX, nY));
     524           0 :                                         continue;
     525             :                                     }
     526             : 
     527           0 :                                     fRY=sqrt(fRadicant2);
     528           0 :                                     fRX=fRatio*fRY;
     529             : 
     530             :                                     // keep center_prime forced to (0,0)
     531             :                                 }
     532             :                                 else
     533             :                                 {
     534             :                                     const double fFactor(
     535           0 :                                         (bLargeArcFlag==bSweepFlag ? -1.0 : 1.0) *
     536           0 :                                         sqrt(fRadicant));
     537             : 
     538             :                                     // actually calculate center_prime
     539           0 :                                     aCenter_prime = B2DPoint(
     540           0 :                                         fFactor*fRX*p1_prime.getY()/fRY,
     541           0 :                                         -fFactor*fRY*p1_prime.getX()/fRX);
     542             :                                 }
     543             : 
     544             :                                 //              +           u - v
     545             :                                 // angle(u,v) =  arccos( ------------ )     (take the sign of (ux vy - uy vx))
     546             :                                 //              -        ||u|| ||v||
     547             : 
     548             :                                 //                  1    | (x1' - cx')/rx |
     549             :                                 // theta1 = angle((   ), |                | )
     550             :                                 //                  0    | (y1' - cy')/ry |
     551           0 :                                 const B2DPoint aRadii(fRX,fRY);
     552             :                                 double fTheta1(
     553             :                                     B2DVector(1.0,0.0).angle(
     554           0 :                                         (p1_prime-aCenter_prime)/aRadii));
     555             : 
     556             :                                 //                 |1|    |  (-x1' - cx')/rx |
     557             :                                 // theta2 = angle( | | ,  |                  | )
     558             :                                 //                 |0|    |  (-y1' - cy')/ry |
     559             :                                 double fTheta2(
     560             :                                     B2DVector(1.0,0.0).angle(
     561           0 :                                         (-p1_prime-aCenter_prime)/aRadii));
     562             : 
     563             :                                 // map both angles to [0,2pi)
     564           0 :                                 fTheta1 = fmod(2*M_PI+fTheta1,2*M_PI);
     565           0 :                                 fTheta2 = fmod(2*M_PI+fTheta2,2*M_PI);
     566             : 
     567             :                                 // make sure the large arc is taken
     568             :                                 // (since
     569             :                                 // createPolygonFromEllipseSegment()
     570             :                                 // normalizes to e.g. cw arc)
     571           0 :                                 if( !bSweepFlag )
     572           0 :                                     std::swap(fTheta1,fTheta2);
     573             : 
     574             :                                 // finally, create bezier polygon from this
     575             :                                 B2DPolygon aSegment(
     576             :                                     tools::createPolygonFromUnitEllipseSegment(
     577           0 :                                         fTheta1, fTheta2 ));
     578             : 
     579             :                                 // transform ellipse by rotation & move to final center
     580           0 :                                 aTransform = basegfx::tools::createScaleB2DHomMatrix(fRX, fRY);
     581             :                                 aTransform.translate(aCenter_prime.getX(),
     582           0 :                                                      aCenter_prime.getY());
     583           0 :                                 aTransform.rotate(fPhi*M_PI/180);
     584           0 :                                 const B2DPoint aOffset((p1+p2)/2.0);
     585             :                                 aTransform.translate(aOffset.getX(),
     586           0 :                                                      aOffset.getY());
     587           0 :                                 aSegment.transform(aTransform);
     588             : 
     589             :                                 // createPolygonFromEllipseSegment()
     590             :                                 // always creates arcs that are
     591             :                                 // positively oriented - flip polygon
     592             :                                 // if we swapped angles above
     593           0 :                                 if( !bSweepFlag )
     594           0 :                                     aSegment.flip();
     595             : 
     596             :                                 // remember PointIndex of evtl. added pure helper points
     597           0 :                                 sal_uInt32 nPointIndex(aCurrPoly.count() + 1);
     598           0 :                                 aCurrPoly.append(aSegment);
     599             : 
     600             :                                 // if asked for, mark pure helper points by adding them to the index list of
     601             :                                 // helper points
     602           0 :                                 if(pHelpPointIndexSet && aCurrPoly.count() > 1)
     603             :                                 {
     604           0 :                                     const sal_uInt32 nPolyIndex(o_rPolyPolygon.count());
     605             : 
     606           0 :                                     for(;nPointIndex + 1 < aCurrPoly.count(); nPointIndex++)
     607             :                                     {
     608           0 :                                         pHelpPointIndexSet->insert(PointIndex(nPolyIndex, nPointIndex));
     609             :                                     }
     610           0 :                                 }
     611             :                             }
     612             : 
     613             :                             // set last position
     614           0 :                             nLastX = nX;
     615           0 :                             nLastY = nY;
     616             :                         }
     617           0 :                         break;
     618             :                     }
     619             : 
     620             :                     default:
     621             :                     {
     622             :                         OSL_FAIL("importFromSvgD(): skipping tags in svg:d element (unknown)!");
     623             :                         OSL_TRACE("importFromSvgD(): skipping tags in svg:d element (unknown: \"%c\")!", aCurrChar);
     624           0 :                         ++nPos;
     625           0 :                         break;
     626             :                     }
     627             :                 }
     628             :             }
     629             : 
     630             :             // if there is polygon data, create non-closed polygon
     631           0 :             if(aCurrPoly.count())
     632             :             {
     633           0 :                 o_rPolyPolygon.append(aCurrPoly);
     634             :             }
     635             : 
     636           0 :             return true;
     637             :         }
     638             : 
     639           0 :         bool importFromSvgPoints( B2DPolygon&            o_rPoly,
     640             :                                   const OUString& rSvgPointsAttribute )
     641             :         {
     642           0 :             o_rPoly.clear();
     643           0 :             const sal_Int32 nLen(rSvgPointsAttribute.getLength());
     644           0 :             sal_Int32 nPos(0);
     645             :             double nX, nY;
     646             : 
     647             :             // skip initial whitespace
     648           0 :             ::basegfx::internal::lcl_skipSpaces(nPos, rSvgPointsAttribute, nLen);
     649             : 
     650           0 :             while(nPos < nLen)
     651             :             {
     652           0 :                 if(!::basegfx::internal::lcl_importDoubleAndSpaces(nX, nPos, rSvgPointsAttribute, nLen)) return false;
     653           0 :                 if(!::basegfx::internal::lcl_importDoubleAndSpaces(nY, nPos, rSvgPointsAttribute, nLen)) return false;
     654             : 
     655             :                 // add point
     656           0 :                 o_rPoly.append(B2DPoint(nX, nY));
     657             : 
     658             :                 // skip to next number, or finish
     659           0 :                 ::basegfx::internal::lcl_skipSpaces(nPos, rSvgPointsAttribute, nLen);
     660             :             }
     661             : 
     662           0 :             return true;
     663             :         }
     664             : 
     665           0 :         OUString exportToSvgPoints( const B2DPolygon& rPoly )
     666             :         {
     667             :             OSL_ENSURE(!rPoly.areControlPointsUsed(), "exportToSvgPoints: Only non-bezier polygons allowed (!)");
     668           0 :             const sal_uInt32 nPointCount(rPoly.count());
     669           0 :             OUStringBuffer aResult;
     670             : 
     671           0 :             for(sal_uInt32 a(0); a < nPointCount; a++)
     672             :             {
     673           0 :                 const basegfx::B2DPoint aPoint(rPoly.getB2DPoint(a));
     674             : 
     675           0 :                 if(a)
     676             :                 {
     677           0 :                     aResult.append(' ');
     678             :                 }
     679             : 
     680           0 :                 ::basegfx::internal::lcl_putNumberChar(aResult, aPoint.getX());
     681           0 :                 aResult.append(',');
     682           0 :                 ::basegfx::internal::lcl_putNumberChar(aResult, aPoint.getY());
     683           0 :             }
     684             : 
     685           0 :             return aResult.makeStringAndClear();
     686             :         }
     687             : 
     688           0 :         OUString exportToSvgD(
     689             :             const B2DPolyPolygon& rPolyPolygon,
     690             :             bool bUseRelativeCoordinates,
     691             :             bool bDetectQuadraticBeziers,
     692             :             bool bHandleRelativeNextPointCompatible)
     693             :         {
     694           0 :             const sal_uInt32 nCount(rPolyPolygon.count());
     695           0 :             OUStringBuffer aResult;
     696           0 :             B2DPoint aCurrentSVGPosition(0.0, 0.0); // SVG assumes (0,0) as the initial current point
     697             : 
     698           0 :             for(sal_uInt32 i(0); i < nCount; i++)
     699             :             {
     700           0 :                 const B2DPolygon aPolygon(rPolyPolygon.getB2DPolygon(i));
     701           0 :                 const sal_uInt32 nPointCount(aPolygon.count());
     702             : 
     703           0 :                 if(nPointCount)
     704             :                 {
     705           0 :                     const bool bPolyUsesControlPoints(aPolygon.areControlPointsUsed());
     706           0 :                     const sal_uInt32 nEdgeCount(aPolygon.isClosed() ? nPointCount : nPointCount - 1);
     707           0 :                     sal_Unicode aLastSVGCommand(' '); // last SVG command char
     708           0 :                     B2DPoint aLeft, aRight; // for quadratic bezier test
     709             : 
     710             :                     // handle polygon start point
     711           0 :                     B2DPoint aEdgeStart(aPolygon.getB2DPoint(0));
     712           0 :                     bool bUseRelativeCoordinatesForFirstPoint(bUseRelativeCoordinates);
     713             : 
     714           0 :                     if(bHandleRelativeNextPointCompatible)
     715             :                     {
     716             :                         // To get around the error that the start point for the next polygon is the
     717             :                         // start point of the current one (and not the last as it was handled up to now)
     718             :                         // do force to write an absolute 'M' command as start for the next polygon
     719           0 :                         bUseRelativeCoordinatesForFirstPoint = false;
     720             :                     }
     721             : 
     722             :                     // Write 'moveto' and the 1st coordinates, set aLastSVGCommand to 'lineto'
     723           0 :                     aResult.append(::basegfx::internal::lcl_getCommand('M', 'm', bUseRelativeCoordinatesForFirstPoint));
     724           0 :                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aEdgeStart.getX(), aCurrentSVGPosition.getX(), bUseRelativeCoordinatesForFirstPoint);
     725           0 :                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aEdgeStart.getY(), aCurrentSVGPosition.getY(), bUseRelativeCoordinatesForFirstPoint);
     726           0 :                     aLastSVGCommand =  ::basegfx::internal::lcl_getCommand('L', 'l', bUseRelativeCoordinatesForFirstPoint);
     727           0 :                     aCurrentSVGPosition = aEdgeStart;
     728             : 
     729           0 :                     for(sal_uInt32 nIndex(0); nIndex < nEdgeCount; nIndex++)
     730             :                     {
     731             :                         // prepare access to next point
     732           0 :                         const sal_uInt32 nNextIndex((nIndex + 1) % nPointCount);
     733           0 :                         const B2DPoint aEdgeEnd(aPolygon.getB2DPoint(nNextIndex));
     734             : 
     735             :                         // handle edge from (aEdgeStart, aEdgeEnd) using indices (nIndex, nNextIndex)
     736             :                         const bool bEdgeIsBezier(bPolyUsesControlPoints
     737           0 :                             && (aPolygon.isNextControlPointUsed(nIndex) || aPolygon.isPrevControlPointUsed(nNextIndex)));
     738             : 
     739           0 :                         if(bEdgeIsBezier)
     740             :                         {
     741             :                             // handle bezier edge
     742           0 :                             const B2DPoint aControlEdgeStart(aPolygon.getNextControlPoint(nIndex));
     743           0 :                             const B2DPoint aControlEdgeEnd(aPolygon.getPrevControlPoint(nNextIndex));
     744           0 :                             bool bIsQuadraticBezier(false);
     745             : 
     746             :                             // check continuity at current edge's start point. For SVG, do NOT use an
     747             :                             // existing continuity since no 'S' or 's' statement should be written. At
     748             :                             // import, that 'previous' control vector is not available. SVG documentation
     749             :                             // says for interpretation:
     750             : 
     751             :                             // "(If there is no previous command or if the previous command was
     752             :                             // not an C, c, S or s, assume the first control point is coincident
     753             :                             // with the current point.)"
     754             : 
     755             :                             // That's what is done from our import, so avoid exporting it as first statement
     756             :                             // is necessary.
     757             :                             const bool bSymmetricAtEdgeStart(
     758             :                                 0 != nIndex
     759           0 :                                 && CONTINUITY_C2 == aPolygon.getContinuityInPoint(nIndex));
     760             : 
     761           0 :                             if(bDetectQuadraticBeziers)
     762             :                             {
     763             :                                 // check for quadratic beziers - that's
     764             :                                 // the case if both control points are in
     765             :                                 // the same place when they are prolonged
     766             :                                 // to the common quadratic control point
     767             : 
     768             :                                 // Left: P = (3P1 - P0) / 2
     769             :                                 // Right: P = (3P2 - P3) / 2
     770           0 :                                 aLeft = B2DPoint((3.0 * aControlEdgeStart - aEdgeStart) / 2.0);
     771           0 :                                 aRight= B2DPoint((3.0 * aControlEdgeEnd - aEdgeEnd) / 2.0);
     772           0 :                                 bIsQuadraticBezier = aLeft.equal(aRight);
     773             :                             }
     774             : 
     775           0 :                             if(bIsQuadraticBezier)
     776             :                             {
     777             :                                 // approximately equal, export as quadratic bezier
     778           0 :                                 if(bSymmetricAtEdgeStart)
     779             :                                 {
     780           0 :                                     const sal_Unicode aCommand(::basegfx::internal::lcl_getCommand('T', 't', bUseRelativeCoordinates));
     781             : 
     782           0 :                                     if(aLastSVGCommand != aCommand)
     783             :                                     {
     784           0 :                                         aResult.append(aCommand);
     785           0 :                                         aLastSVGCommand = aCommand;
     786             :                                     }
     787             : 
     788           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aEdgeEnd.getX(), aCurrentSVGPosition.getX(), bUseRelativeCoordinates);
     789           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aEdgeEnd.getY(), aCurrentSVGPosition.getY(), bUseRelativeCoordinates);
     790           0 :                                     aLastSVGCommand = aCommand;
     791           0 :                                     aCurrentSVGPosition = aEdgeEnd;
     792             :                                 }
     793             :                                 else
     794             :                                 {
     795           0 :                                     const sal_Unicode aCommand(::basegfx::internal::lcl_getCommand('Q', 'q', bUseRelativeCoordinates));
     796             : 
     797           0 :                                     if(aLastSVGCommand != aCommand)
     798             :                                     {
     799           0 :                                         aResult.append(aCommand);
     800           0 :                                         aLastSVGCommand = aCommand;
     801             :                                     }
     802             : 
     803           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aLeft.getX(), aCurrentSVGPosition.getX(), bUseRelativeCoordinates);
     804           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aLeft.getY(), aCurrentSVGPosition.getY(), bUseRelativeCoordinates);
     805           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aEdgeEnd.getX(), aCurrentSVGPosition.getX(), bUseRelativeCoordinates);
     806           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aEdgeEnd.getY(), aCurrentSVGPosition.getY(), bUseRelativeCoordinates);
     807           0 :                                     aLastSVGCommand = aCommand;
     808           0 :                                     aCurrentSVGPosition = aEdgeEnd;
     809             :                                 }
     810             :                             }
     811             :                             else
     812             :                             {
     813             :                                 // export as cubic bezier
     814           0 :                                 if(bSymmetricAtEdgeStart)
     815             :                                 {
     816           0 :                                     const sal_Unicode aCommand(::basegfx::internal::lcl_getCommand('S', 's', bUseRelativeCoordinates));
     817             : 
     818           0 :                                     if(aLastSVGCommand != aCommand)
     819             :                                     {
     820           0 :                                         aResult.append(aCommand);
     821           0 :                                         aLastSVGCommand = aCommand;
     822             :                                     }
     823             : 
     824           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aControlEdgeEnd.getX(), aCurrentSVGPosition.getX(), bUseRelativeCoordinates);
     825           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aControlEdgeEnd.getY(), aCurrentSVGPosition.getY(), bUseRelativeCoordinates);
     826           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aEdgeEnd.getX(), aCurrentSVGPosition.getX(), bUseRelativeCoordinates);
     827           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aEdgeEnd.getY(), aCurrentSVGPosition.getY(), bUseRelativeCoordinates);
     828           0 :                                     aLastSVGCommand = aCommand;
     829           0 :                                     aCurrentSVGPosition = aEdgeEnd;
     830             :                                 }
     831             :                                 else
     832             :                                 {
     833           0 :                                     const sal_Unicode aCommand(::basegfx::internal::lcl_getCommand('C', 'c', bUseRelativeCoordinates));
     834             : 
     835           0 :                                     if(aLastSVGCommand != aCommand)
     836             :                                     {
     837           0 :                                         aResult.append(aCommand);
     838           0 :                                         aLastSVGCommand = aCommand;
     839             :                                     }
     840             : 
     841           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aControlEdgeStart.getX(), aCurrentSVGPosition.getX(), bUseRelativeCoordinates);
     842           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aControlEdgeStart.getY(), aCurrentSVGPosition.getY(), bUseRelativeCoordinates);
     843           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aControlEdgeEnd.getX(), aCurrentSVGPosition.getX(), bUseRelativeCoordinates);
     844           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aControlEdgeEnd.getY(), aCurrentSVGPosition.getY(), bUseRelativeCoordinates);
     845           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aEdgeEnd.getX(), aCurrentSVGPosition.getX(), bUseRelativeCoordinates);
     846           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aEdgeEnd.getY(), aCurrentSVGPosition.getY(), bUseRelativeCoordinates);
     847           0 :                                     aLastSVGCommand = aCommand;
     848           0 :                                     aCurrentSVGPosition = aEdgeEnd;
     849             :                                 }
     850           0 :                             }
     851             :                         }
     852             :                         else
     853             :                         {
     854             :                             // straight edge
     855           0 :                             if(0 == nNextIndex)
     856             :                             {
     857             :                                 // it's a closed polygon's last edge and it's not a bezier edge, so there is
     858             :                                 // no need to write it
     859             :                             }
     860             :                             else
     861             :                             {
     862           0 :                                 const bool bXEqual(aEdgeStart.getX() == aEdgeEnd.getX());
     863           0 :                                 const bool bYEqual(aEdgeStart.getY() == aEdgeEnd.getY());
     864             : 
     865           0 :                                 if(bXEqual && bYEqual)
     866             :                                 {
     867             :                                     // point is a double point; do not export at all
     868             :                                 }
     869           0 :                                 else if(bXEqual)
     870             :                                 {
     871             :                                     // export as vertical line
     872           0 :                                     const sal_Unicode aCommand(::basegfx::internal::lcl_getCommand('V', 'v', bUseRelativeCoordinates));
     873             : 
     874           0 :                                     if(aLastSVGCommand != aCommand)
     875             :                                     {
     876           0 :                                         aResult.append(aCommand);
     877           0 :                                         aLastSVGCommand = aCommand;
     878             :                                     }
     879             : 
     880           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aEdgeEnd.getY(), aCurrentSVGPosition.getY(), bUseRelativeCoordinates);
     881           0 :                                     aCurrentSVGPosition = aEdgeEnd;
     882             :                                 }
     883           0 :                                 else if(bYEqual)
     884             :                                 {
     885             :                                     // export as horizontal line
     886           0 :                                     const sal_Unicode aCommand(::basegfx::internal::lcl_getCommand('H', 'h', bUseRelativeCoordinates));
     887             : 
     888           0 :                                     if(aLastSVGCommand != aCommand)
     889             :                                     {
     890           0 :                                         aResult.append(aCommand);
     891           0 :                                         aLastSVGCommand = aCommand;
     892             :                                     }
     893             : 
     894           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aEdgeEnd.getX(), aCurrentSVGPosition.getX(), bUseRelativeCoordinates);
     895           0 :                                     aCurrentSVGPosition = aEdgeEnd;
     896             :                                 }
     897             :                                 else
     898             :                                 {
     899             :                                     // export as line
     900           0 :                                     const sal_Unicode aCommand(::basegfx::internal::lcl_getCommand('L', 'l', bUseRelativeCoordinates));
     901             : 
     902           0 :                                     if(aLastSVGCommand != aCommand)
     903             :                                     {
     904           0 :                                         aResult.append(aCommand);
     905           0 :                                         aLastSVGCommand = aCommand;
     906             :                                     }
     907             : 
     908           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aEdgeEnd.getX(), aCurrentSVGPosition.getX(), bUseRelativeCoordinates);
     909           0 :                                     ::basegfx::internal::lcl_putNumberCharWithSpace(aResult, aEdgeEnd.getY(), aCurrentSVGPosition.getY(), bUseRelativeCoordinates);
     910           0 :                                     aCurrentSVGPosition = aEdgeEnd;
     911             :                                 }
     912             :                             }
     913             :                         }
     914             : 
     915             :                         // prepare edge start for next loop step
     916           0 :                         aEdgeStart = aEdgeEnd;
     917           0 :                     }
     918             : 
     919             :                     // close path if closed poly (Z and z are equivalent here, but looks nicer when case is matched)
     920           0 :                     if(aPolygon.isClosed())
     921             :                     {
     922           0 :                         aResult.append(::basegfx::internal::lcl_getCommand('Z', 'z', bUseRelativeCoordinates));
     923             :                     }
     924             : 
     925           0 :                     if(!bHandleRelativeNextPointCompatible)
     926             :                     {
     927             :                         // SVG defines that "the next subpath starts at the same initial point as the current subpath",
     928             :                         // so set aCurrentSVGPosition to the 1st point of the current, now ended and written path
     929           0 :                         aCurrentSVGPosition = aPolygon.getB2DPoint(0);
     930           0 :                     }
     931             :                 }
     932           0 :             }
     933             : 
     934           0 :             return aResult.makeStringAndClear();
     935             :         }
     936             :     }
     937             : }
     938             : 
     939             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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